Type-writing machine.



A. GLF. KUROWSKI. TYPEWMTING MACHINE.

APPLICATION FILED MAY 3, 1912.

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TYPE WRITING MACHINE.

APPLICATION FILED MAY s, 1912A 1,090,219. Patented Mar.17,1914.

2 SHEBTS-SHEBT 2.

{NVENTQR UNr'rnn 'STAqi-iimA PATENT OFFICE.

ALFRED o. F. KURoWsKI, or NEW Yorin, lN. Y. .-AssrGNon 'ro UNDEnWooD. rrYPn- WRITER COMPANY, or NEW YORK, N. Y., A CORPORATION or DELAWARE.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented )Ia-1'. 17, 1914.

Application filed May 8, 1912. Serial No. 694.818.

To all whom, 'it may; Concern.

lie .it known that. l, Ahi-Tuin (i. l". KU- nfnvsjir. a citizen of the United States, re` siding in Brooklyn borough. in the county of Kings, city and State of New York, have invented certain neiv and useful .improvementsl in 'l'ype-Vriting' Macl'iinen, of which the followingr a specification.

This invention relates to a new and improved Shock-absorber ior'grradually bringe ing the typewriter carriage to rest after it has been released from the eacapement mechaniem and permitted 51o rnn forward, as in tabulating or column lee-ting.

In the typevvvitineT operation of decimal tabulatilig or column selecting, it is common in many types of machines, as for example the Underwood, to disconnect the locking` eseapement mechanism from the carriage, So as' to'alloiv the Carriage to' spring` forward freely under the traction of its sprinm.- It evident it' the 'movement of the carriage is uncontrolled when the stopping point. is reached that it wili hebrouliht u'p ivith a. bang, jarringr and racking the This' machine and wearing out' the parts. featurehas been eliminated in the plast, by the use of n'lnatyis known 'a fovernor which comes into play at the instant the eaeapementmechanism is d isrormeeted from the carriage` and enables the carriage to move at asafe, uniform and relatively slowt is the purpose then of this invention to save time and Still eliminate the Shock incident to a jump movement of the typewriter-carriage by providinagg` a4 pneumatic cushion or. buffer device acting to enable a 'va pid initial movement of the carriage and yet effectively-and gradually rctarding thc final movement in a' yieldingr manner, so as to obtain a quick run and an easy stop.

Tn the cari-ving out of this invention the tabulating' he aetuate. bars or vplungers to move them up into the path of stops carried by the carriage, at the same time releasing: the carriasfe from its retaininglr campement nweha1""'x, so that it runs 'forward under the tension of iis Hiring. lhe movementot the carriage, however, is controlled by a shia-k-absorber shown in theform of a pneumatie dash pot and normally disconnected ringe, #o aa to have subata'ntially the same l c ii'eet. for di'll'eventmovements of the ,carmage. The position of the adjuster, and thus of the connector, is determined by a.

plurality ot limit stops which arci-brown into the path of the adjuster at the actuation of the tahulating` keys. and determine the extent of movement of the adjuster ac'-,

covding' to the tahulating key struck. -The adjuster. limit @topaI and the shifterall depend for their movement onthe actuation ot the talmlal'inekeys.

Other features and advantages will hereinafter appear.

Figure 1 is a diagrammatic sectional viewA taken trom front to rear of-the machine.`

Fig. Q is a vertical section taken froin'right to left and looking toward the rear-"of the machine. Fig; 3 is a view-similar to Fig. 2,

showingr one of the tabulator key levers ac .tuated to move thel adjuster and the -connet-tor. Fig. -l a. diagrammatic View partly iu section, showing the connector carried along to nearly the limitof-its`p0- sition lay its lconnection with the carriage, so that the effect of the shock-absorber is utilized in vretardiagr the final movement of the carriage. Fig. 5 is a vertical detail section, showiireT ther-ack raised tronlrthepinion of the campement mechanisl-mand show'- ing: the connector in engagementwith one of the slop;q carried by the carriage, so that the movement of the carriage. Will be trans- Amitted to the traveliner element of the shockabsorbinfg means. Figx is a fragmentary perspective view, showing the aetionwf ,ene

Referring more particularly to the separate parts of this invention as embodied in the form shown in the drawings, 1 indicates typewriting keys which are mounted on key levers2 connected through the intermediary of bell cranks 3 to type bars 4, so as to swing the letter against the front side of a platen 5 mounted on a carriage Each of thetype bars 4 is provided with aheel 7, which rams against a universal bar 8, so as to rock a pair of connected pawls 9 to admit of the step-by-step rotation of an escapement wheel 10 having a pinion 11 joined therewith .to admit of the step-by-step movement of the. carriage 6, which is provided with a rack 12 engagihg the pinion 11 and hung by arms 13 pivotally mounted on the car riage i3, as at 14. The carriage 6 is drawn in the letter feeding' direction when the escapemeut mechanism just described is actuated, by a spring barrel indicated at 15.

For the purpose of obtaining a movement of the carriage (S other than a step-by-step movement, for example a tabulating movement, there may be provided tabulating keys 1-6 mounted en key levers 17, which are pivotally mounted intermediate their ends, as at 18, and adapted to raise plungers 19 resting in sockets provided at their rear ends. The plungers 19 are forced upwardly at the actuation of the keys 16 into the path of carriage stops 2O adjustably mounted on a rack 21 carried by the carriage 6v in any suitable manner. All of the plunger bars 19 are provided with a cut-out portion 22 forming a shelf 23, so that when any one of the plunger bars 19 is forced upwardly 'by the actuation of its tabulating key, it will rock a universal arm 24 engaging all of the shelves 2 3. The universal arm 24 is connected to a rock shaft 25 having an arm 26 connected by a link 27 to a lever 28. The lever 28 has at its forward end a bearing roller 29, which rests on the under side of the rack 12 at a smooth portion thereof, so as to be capable of lifting the rack 12 out of mesh with the pinion 11. 1t will be seen that this frees the carriage from the escapement mechanism so that it is free to run forward under the traction of its spring barrel `15 until otherwise stopped, as by one of the plungers 19 coming into the path of one of the stops 20. If the movement of the carriage Were of any conf siderable extent, this abrupt stopping would the machine considerably. In order to do awa with this jar, there is provided a shock-absorbing means, indicated at 30,

' which, however, is normally disconnected from the carriage under ordinary conditions. The shock-absorbing means isshown in the form of a dashpot or buffer having a cylinder 31 with a piston 32 adapted to reciprocate therein and connected to a goose-neck piston rod 33. The piston and piston rod are normally held in the position shown in Fig.

3 by a spring 34. The upper reach of the goose-neck piston rod 33, indicated at 35, is guided in suitable slideways 36, so as to extend alongside of the rack 21 and is provided at its end with a plurality of notches 37 of which there may be any suitable number, in this instance four being shown.

For the purpose of joining the carriage with the vshock-absorbing`means 30 so that the speed of movement of the carriage will be controlled by the shock-absorbing means there is provided a connector 38 having projections 39 movable into the path of projections 40 on the stops 20. The connector 38 is also provided with a cut-out portion 41, whereby it may be located circumjacent the upper reach 35 of the piston rod 33, and so that a portion thereof can engage in one of the notches 37 so as to connect the carriage with the piston-rod 33. The connector 38, however, is normallyA out of junction with the stops 2Q and the notches 37 of the piston rod 33, that is to say, occupying a position such as thatV shown in Fig. 1. In order to shift the connector to the position shown in Fig. 5, it is mounted on a shifter 42, which is shown in the form of a swinging frame 43 having a pair of rails 44 passing through.

suitable bearings of the connector 38, so that the connector is adjustable along the shifter 42 to `vary its position relative to the carriage and relative to the piston rod 33. The swinging frame 43 is rocked 'by a forked lever 69' secured to the rock shaft 25. The purpose of moving the connectoralong the shifter is to vary the point of joinder of the connector with the upper reach 35, and thus vary the instant of movement of the piston with the carriage, so that the distance the carriage travels while connected with the piston is substantially constant-,regardless of which tabulator key has been operated. The f i connector 38 is shifted with respect tothe piston rod' reach 35, so vas to vary the point of connection to correspond with di rent magnitudes of movement of" the carriage.'

To accomplish this purpose, there is provided an adjuster 45 which is provided with a pin'46 passing .ina slot 47 in the con#v ncctor 38, so that the adjuster can shiftthe connector along 'the rails 44 of the shifter.

42 into opposition with different, onesofthe Ynotches 37. The adjuster 45 is shown to. comprisea bell' crank letr 48 pivoted` atv 49, and having 'pivotdd to one arm there of c.

lever 50. The purpose of this arrangement,

is to form the adjuster in two parts capable of 'a relative movement, but normally held to movevin unison by means of a spring 51 53 which tends to hold abutments 52 an a unified structure.

-i ,i'n engagement with each other, solas to' form;

One arm 54 of the adjuster, or specifically of the hell crank lever. l

48, overlies all of the key levers 17 so as to' be actuated when'any one ofthese key levers and graduated means actuated by said tabulating mechanism to connect different points of said shockfabsorbing means with said carriage.

3. The combination with a carriage, of mechanism to effect forward runs of said carriage, shockiibsorbin.g means, a connector for joining said carriage with said shockabsorbing means, and an adjuster for detcrmining` the period of connection by said connector of said carriage with said shockabsorb'ing means.

4. The combination with a carriage, of mechanism to cause said carriage to run forward, shock-absorbing means, a connector tor joining said carriage with said shockabsorbing means, and an adjuster for determining the period of connection by said connector of said carriage with said shock-absorbin means; said adjuster being operated by sai mechanism.

5. The combination with a carriage, of mechanism to causesaid carriage tojrun forward, shockabsorbing -nieans, a connector for-joining said carriage with said shockabsorbing means, a shifter for manipulating said connector to and from its connecting position, and an adjuster for determining the period of connection by said connector (f said carriage with said shock-absorbing means.

6. yThe combination with a carriage, of mechanism to cause said carriage to run for Ward, shoeleabsorbing means, a connector' for joining said carriafre with said shook-absorbing means, a shifter for manipulating saidconiiector to and from its connecting position, and an adjuster for determining the period of connection by said connector of said carriage with said shock-absorbing means; said shifter and said adjuster being operated by said mechanism.

'i'.` The combination with a carriage, of mechanism to effect forward runs of said carriage, shock-absorbing means, a connector for joiningsaid carriage with said shock-absorbing means, and an adjuster for. determiningr the period of connection by said connestor of said carriage With said slioclc-ab sorbing means; said adjuster having rela tively movable parts yieldingly held to move in unison.

8. The 9combination with a carriage, of mechanism to effect forward runs of said carriage,shock-absorbing mcans,'a connector for joining said carriage with said shockabsorbingr means. an adjuster for determining the period of connection by said connec` tor of said carriage' with said shock-absorb ing means, and limit stops for determining the positionof said adjuster.

9. The combination with a carriage, of tabulating keys, lungcrs operated said tabulating keys or determining the extent of lmovement..of said carriage, shock-absorb# ing meansnormally disconnected from said carriage, a connector for joining said shockabsorbing means with said carriage, an adjuster operated by said keys to determine the initial point of joinder by said connector of said shock-absorbing means with said carriage, and limit stops operated by said plungers to move into the path of said adjuster to determine thev initial position of said connector.

10. The combination with ,a carriage, of tabulating keys, plungers operated by said tabuiating keys for determininor the extent of movement of said carriage, shock-absorb ing means normally disconnected from said carriage, a connector for joining said shockabsorbing means with said carriage, an ad juster operated by said keys to determine the initial point of joinder by said connector of said shock-absorbing means with said carringe, and limit stops operated by said plungers to move into the path of said adjuster to determine the initial position of said conncctor, cacli'of said limit stops beine operable by any oneI oia `plurality of said plungers.

1l. The combination with a carriage, of a shock-absorbing means -for said carria e, a connector for joining said shock-absor ing means with said carriage, a plurality of keys for determining vthe movement of said carriage, plungers operated by said keys, an adjuster for determining the initial point of said connector, and a series of stops, each overlapping a plurality of said plungers and movable by said plungers into the path of said adjuster, so as t0 determine the initial position of said connector.

- 12v. The combination with a carriage, of keys for determining the movement of said carriage, stops carried by said carriage shock-absorbing means for said carriage normally disconnected therefrom, and 'a connector movable at the actuation of one of said keys into the path of one of said stops to join said shock-absorbing means with said carriage.

13. The combination with a carriage, of stops carried by said carriage, shock-ab-l sorbing means for said carriage normally disconnected therefrom, keys for determining the movement of said carriage, lungers operated by said keys, a connector or joining said carriage with said slioc-l absorbiiig means, and means actuated by all ot said plungers for shitting said connector into the path of said stops so as to enable said shock-absorbing means to control the movement of said carriage.

- 14. The combination with a carriages of shock-absorbing means for said carriage, keys for determining the movement of said carriage, an adjuster for determining the period of connection of said carriage with said shock-absorbing means, said adjuster comp Iiae - ringe `from its stopping point,

prising a pivotnlly mounted bell crank lever overlvimbf snid keys so ns to be operated therein', :t lever pivotnlly connected to Said hell erwin( lever, und u spring; `vieldingly holdin@r said lsecond-ment-ioned lever to move with 52nd.tiret-mentioned lever.

l l. rl`he combination with :t eat-ringe, of` shock-:ibsorbnig means; for said carriage, a connector for 'Joining' sind shock-absorbing means with Said carriage, an adjuster for deterinnnng the initial position of said conneetor, and automatic means or retnrx'nng said ad uster to a normal position.

16. The combination with n cairriagefof shock-absorbing means for said carriage, un adjuster for determining the period of connection of .said diodi-absorbing means with i said enrringe,y jump movement mecl'mnism or said carriage having cams thereon, and :t series of stops operable by said cznns. to move intothe path of said adjuster to determine the stopping position thereof.

l17. The combination `with n carriage, of mechanism to effect' n forward rnn of said carriage, n shock-absorbing device lniving n stationary support, n connector for nutomaticnlly joining said carriage 'with seid shoeli-uliisorhing device when the carriage a predetermined dist :vince from its stopping position, and n shifter for nnniipulnt'iirer said connector to und from its connecting position.

18. The combination with t1 cnrringe, of mechanism to ell'eet n forward rnn of- Suid carriage, a shock-absorbing device having` n stationery mounting', u connector for untomatieztlly joining seid carriage with'enid shock-nlJsorl'fnn;I device when the enrrintge u n'edeterinined distance from its stopping posit-ion, n shifter 'for mnnipnlating?r .Enid connector to and from its connecting poni-- tion, und means for operating smid shifter from said mechanism.-

, 1t). The combination with it ein-ringe and stops selectively operable to Stop the cnrat. ditferent points, ofshock-absorbing means for Suid carriage comprising n Stn tional-y element und un element antonnitically connected to move with said cui-ringe when the carriage is at. n Iixed distance nie-ans to iuitoinnti cally vary the point; of said connection to correspond to the posit-ion of the Selected stop, and means for uutonmtienlly returningr said. movable clementindependently of mid carriage.

20. The eonlbinut-ion with n crnring'e movable to different stop positions, of Shock-absorbing means for said comprising n, stationu'y element anni :in clenient. Agonnected to move :t fixed distance with .snid cnriuge, means to automatically very the point at which the carriage is connected to the movable element to correspond to the. stop position of the carriage, and a en vrizlge uu-ringe, ofla. shock :xbsorlier therefor, meeh- :miem cmitrollieg the movementof the enrringe, :l het' for :actuating Szlid controlling mechanism to permit the euri-inge to run forward, mennfs operated hy the said key to vdetermine the diA eine-e through which the cin-ringe :neven forward, und meelniniifm eooperntin'iwith snifl menne to dtiftern'line the extent o movement of the carriage with the vshock :,xli-.ortn;r. Y

ln n tviievvriting nntelline, the combination with :i traveling envi-inge, of Stops thereon, :i .shock nbserlicr nrd n connector niovnliic into the pull: of 4said Stops to connect the shock nlseorher with the stops.

binution vvit'ii :t trnveling czirringe, ol' stops selertivel)` nin-.ruhlc'to stop the carriage :it ditl'erentmeinte, n cooperating Stop device on the carriage, prising n eylintlcr, n, piston movable therein in thev diret-tion olf the cnrriz'ige travel, :t pi:4 ten rod, menus on :said rod in the pnt'h of enidstep device in zictnntc the shoe-lr ahnorlier, und ineelnzninr to nutonniticztlly vary tht position lot' menneA to eorreelnynd to the selectively onernteil stops.

24. ln n typewriting muchine, the com4 lyinntion with :i traveling curving", of u liniier or hnelt nlnet-tier having :i Htntionttry mounting, neet the nine with the Shock :xhserlzer :it n prv-determinrd point in the enrrinlne trnvel.

23. in n. typexvriting' nnnrhine, the combinntion vvitli :x traveling enrrintnf, ol" nlennzs to .Step tin), enrrree :it tiiltvrent points in its travel, :t etnici; nl connect; 'the (':nfringe und hnelt :zhsin'liei' during n sulistnniintlv unit'orin civ' fut. ol.y the cntjringc truvcl regjnzdhh of the stop penition ol" the coniuge,

2li. lll 5.! tj'tie'ivlitll f lunatic-n with it trnvi'linf; r'ntfatgje, of selective inv-:ins 'tor ,stopping the i-.nrringe ni'. dit'- ierent pointe, n lmll'er device, und nieztns to nutonnnticnlljy connerl' the enz-ringe with the lmll'ev device ut pointe :t pre-fleerniined distnnre :diend ot the fstoji'ipinggj mints of tineuri-inge.

Ji. .ln :t I viien'ritingj ninihini',y the eonlliination with :t traveling-5 cnrvinge, ot' n series ot: stoiinl'or the turringge. n. initier devia?, :nul menne to connect the initier device with the carriage :it diilerent pointe enrrffnptnulinf to the positions ol'V Si d Stops.

'ln u typeu'rit'ing nniehine. the enmliinaltion with it. traveling enrringe, oit' :t series of stops, n counter sion on the ein1` ringe, selective vlevicfs; lor projecting' Said stone into the path of the counter stop, n

shock nlvsorher, n connector between the Fhoel: nhserherwfnnl the said counter stop,

:ind menne on the carriage to conaminfr, und nxcclmnism to i und n shock :iheorber coloand means operated'by said devices to shift Asaid connector to positions corresponding with 'the positions of the projected stops.

29. In a typewriting machine, the combination with a traveling carriage, of a stationary cylinder, a piston movable therein in the direction of the carriage travel, a piston rod connected to said piston, a. stop `on the carriage, a stationary stop, means to project the stationary stop into the path of the stop on the carriage, and a connector on the piston rod in the path of said firstnamed stop. t

30. In a typewriting machine, the combination of a traveling carriage, a' series of` stops, a counter stop on the carriage, keys for selectively projecting said stops into the path of the counter stop, a stationary cylinder, a piston movable therein in the direction of the carriage travel, a piston rod connected to the piston, a connector, means operated by said keys to shift the connector to different positions on the piston rod corresponding to the positions of the operated stops, and means to move said connector into the path of said counter stop.

31. In a typewriting machine, the combination with a traveling carriage, of a row of decimal tabulator stops, keys to selectively operate said stops, a counter stop on the carriage, a shock absorber, a connector, and means operated by said keys to shift the connector' in the direction of the carriage travel through distances corresponding to the distances `between the tabulator stops.

32. In a typewriting machine, the combination with a series of tabulator stops, of keys to project said stops, a traveling can riage, a' counter stop thereon, a. shock ab-v sorber, a connector between thev shock absorber and the. carriage, an arm operated by the keys to shift said connector, and sto s selectivelyr operated by said keys into t el path of said arm to limit the movement thereof, and thereby cause said connector to be shift-ed throu h distances corresponding to the position o the project-cd stop.

33. The combination with a traveling carriage, a rack thereon and a stop adjustable along said rack, or a butler having a stationary mounting, and means extendingfinto the path ofthe said stop and forming a connectlon between the buffer and' stop to stop the carriage at a position determined by the adjustment of said stop. 1 1

34. rI `he combination with a traveling carriage and column stops thereon, of a butter, a connector to actuate the buffer, and lieyactuated means to move the connector into the path of movement of said stops.

.ALFRED G. F. KURO "SKL GEORGE E. MCEWING, C. RIPLEY.

-rsoL 

